music/exemplars/formula_cards/EX_018.json
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"tier": "RUNG-1 MEASURED",
"legal_posture": "ANALYSIS FOR UNDERSTANDING ONLY. Audio lawfully obtained by Josh, read from disk, measured, and never copied, redistributed, or used as model input of any kind.",
"track_id": "EX_018",
"title": "Subwoofer Lullaby",
"game": "Minecraft",
"composer": "C418",
"purpose_class": "EXPLORATION",
"source_path": "D:\\audio\\exemplars\\C418 - Minecraft - Volume Alpha\\C418 - Minecraft - Volume Alpha - 03 Subwoofer Lullaby.flac",
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"decoder": "ffmpeg.exe :: ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers",
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"note": "This measurement is admissible only because the positive control recovered its planted answers in the same process, immediately before it."
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172.27,
172.27,
172.27,
172.27,
172.27,
172.27,
136.0,
136.0,
136.0,
161.5,
161.5,
161.5,
161.5,
161.5,
161.5,
172.27,
172.27,
172.27,
172.27,
172.27
],
"adjustment_events": [
{
"position_s": 0.0,
"duration_s": 43.79,
"delta_bpm": -61.56,
"shape": "ramp"
},
{
"position_s": 44.14,
"duration_s": 2.6,
"delta_bpm": 10.11,
"shape": "step"
},
{
"position_s": 47.04,
"duration_s": 18.6,
"delta_bpm": -57.74,
"shape": "step"
},
{
"position_s": 65.94,
"duration_s": 16.97,
"delta_bpm": 29.75,
"shape": "step"
},
{
"position_s": 83.45,
"duration_s": 3.74,
"delta_bpm": -9.48,
"shape": "step"
},
{
"position_s": 88.12,
"duration_s": 10.63,
"delta_bpm": 22.49,
"shape": "step"
},
{
"position_s": 100.31,
"duration_s": 2.41,
"delta_bpm": -6.65,
"shape": "step"
},
{
"position_s": 103.7,
"duration_s": 5.29,
"delta_bpm": 19.82,
"shape": "step"
},
{
"position_s": 109.3,
"duration_s": 1.67,
"delta_bpm": -14.87,
"shape": "step"
},
{
"position_s": 111.48,
"duration_s": 21.73,
"delta_bpm": 26.01,
"shape": "step"
},
{
"position_s": 133.51,
"duration_s": 19.46,
"delta_bpm": -64.87,
"shape": "step"
},
{
"position_s": 153.32,
"duration_s": 6.34,
"delta_bpm": 9.57,
"shape": "step"
},
{
"position_s": 159.96,
"duration_s": 5.2,
"delta_bpm": -45.45,
"shape": "step"
},
{
"position_s": 166.0,
"duration_s": 5.71,
"delta_bpm": -42.57,
"shape": "step"
},
{
"position_s": 174.75,
"duration_s": 33.18,
"delta_bpm": 21.72,
"shape": "step"
}
],
"dispersion_bpm": 43.585,
"rubato_depth_bpm": 98.438
},
"global_bpm": 117.45,
"octave_ambiguity_note": "Beat trackers pick a metrical level, and half/double-time readings are a real and known property, not an error -- the rig's own control plants 120 bpm and this estimator returns 60. Every bar figure on this card (time-to-hook in bars, the complexity index's bar length) inherits whichever level was picked, so compare bar counts within a card, never across cards, until rung 2 pins the metrical level per class.",
"windowed_tempo_stability": {
"tempo_bpm_global": 117.45,
"tempo_bpm_median_local": 123.05,
"tempo_iqr_bpm": 11.75,
"tempo_stability": 0.6182,
"beat_interval_cv": 0.0565
},
"dominant_onset_period_s": 1.6254,
"dominant_onset_period_bpm": 36.91,
"metre": {
"assumed": "4/4",
"measured": null,
"note": "Bar arithmetic on this card uses 4 beats per bar at the baseline tempo. The onset period beside it is MEASURED; the signature is not."
},
"groove": {
"swing_ratio": 0.571,
"onset_rate_per_s": 10.768
}
},
"tonality": {
"key": "C",
"mode": "major",
"windowed_key_agreement": 0.5,
"modulation_note": "Windowed key agreement below ~0.7 is the modulation signal at rung 1; a pivot-chord map needs symbolic transcription (rung 2)."
},
"the_hook": {
"available": true,
"onset_s": 0.035,
"onset_bars": 0.02,
"pitch_contour": "-UUUDDUU-UD-DUU",
"interval_vocabulary_semitones": [
0,
3,
4,
12,
15
],
"intervals": [
0.0,
4.0,
3.0,
12.0,
-15.0,
-4.0,
4.0,
3.0,
0.0,
12.0,
-15.0,
0.0,
-4.0,
4.0,
3.0
],
"range_semitones": 19.0,
"distinctive_deviation": {
"largest_interval_semitones": -15.0,
"at_note_index": 5,
"is_licensed_leap": true
}
},
"motif_economy": {
"self_similarity_peak": 0.8875,
"self_similarity_baseline": 0.6279,
"self_similarity_lift": 0.2596,
"recurrence_lag_s": 0.464,
"interval_3gram_repetition": 0.3861,
"interval_4gram_repetition": 0.2702
},
"lane_analysis": {
"method": "spectral_band_proxy",
"confidence": "LOW-FOR-ROSTER, USABLE-FOR-ARRANGEMENT",
"method_note": "Section 11.1 requires the lane method be declared. Bands are not instruments: two instruments in one octave read as one lane, and one instrument spanning two octaves reads as two. Entry/exit and simultaneity shapes are trustworthy; a roster is not claimed.",
"lane_roster_bands": [
"sub",
"low_bass",
"bass",
"low_mid",
"mid",
"upper_mid",
"presence",
"brilliance",
"air",
"ultra"
],
"entry_exit_map": [
{
"lane": "sub",
"band_hz": [
20,
45
],
"entry_s": 71.425,
"exit_s": 191.634,
"active_fraction": 0.0961,
"segments": [
[
71.425,
71.959
],
[
72.005,
78.228
],
[
157.965,
158.964
],
[
175.914,
178.585
],
[
182.579,
183.67
],
[
183.925,
184.993
],
[
188.941,
191.634
]
]
},
{
"lane": "low_bass",
"band_hz": [
45,
90
],
"entry_s": 38.94,
"exit_s": 204.428,
"active_fraction": 0.297,
"segments": [
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38.94,
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],
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40.588,
41.471
],
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42.191,
43.259
],
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43.816,
44.884
],
[
45.418,
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],
[
47.067,
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],
[
48.692,
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],
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50.294,
51.363
],
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71.308,
79.737
],
[
81.247,
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],
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92.717,
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],
[
112.292,
112.965
],
[
150.047,
153.855
],
[
156.433,
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],
[
162.4,
167.857
],
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168.786,
174.289
],
[
175.496,
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],
[
182.068,
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],
[
188.5,
193.26
],
[
195.396,
199.181
],
[
202.13,
204.428
]
]
},
{
"lane": "bass",
"band_hz": [
90,
180
],
"entry_s": 17.856,
"exit_s": 178.933,
"active_fraction": 0.2697,
"segments": [
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17.856,
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],
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30.836,
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],
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32.461,
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],
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34.11,
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],
[
35.712,
36.688
],
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37.314,
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],
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42.214,
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],
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43.816,
44.768
],
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48.692,
49.621
],
[
50.318,
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],
[
56.773,
57.284
],
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58.398,
58.909
],
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63.274,
63.785
],
[
64.644,
65.178
],
[
66.595,
67.291
],
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69.312,
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],
[
72.841,
78.6
],
[
78.739,
79.668
],
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80.457,
85.635
],
[
131.402,
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],
[
136.255,
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],
[
142.733,
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],
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149.211,
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],
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150.837,
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],
[
155.69,
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],
[
157.315,
160.218
],
[
162.191,
163.213
],
[
163.817,
165.024
],
[
168.67,
170.017
],
[
170.295,
171.688
],
[
175.148,
176.565
],
[
176.774,
178.933
]
]
},
{
"lane": "low_mid",
"band_hz": [
180,
355
],
"entry_s": 9.752,
"exit_s": 177.795,
"active_fraction": 0.3351,
"segments": [
[
9.752,
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],
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13.003,
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],
[
16.231,
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19.482,
25.658
],
[
25.937,
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],
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31.533,
32.16
],
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32.438,
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],
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34.876,
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38.917,
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],
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41.378,
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43.003,
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45.418,
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47.856,
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49.482,
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51.897,
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],
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58.236,
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70.798,
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[
137.88,
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144.358,
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],
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147.609,
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],
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150.024,
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156.502,
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],
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160.566,
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],
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162.168,
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],
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167.044,
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],
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168.67,
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],
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173.523,
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],
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]
]
},
{
"lane": "mid",
"band_hz": [
355,
710
],
"entry_s": 9.218,
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"active_fraction": 0.3477,
"segments": [
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9.218,
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],
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10.728,
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],
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15.441,
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17.09,
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18.692,
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],
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20.294,
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21.92,
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],
[
23.568,
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],
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25.17,
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],
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31.626,
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],
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38.174,
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],
[
52.733,
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],
[
55.96,
58.979
],
[
59.188,
62.09
],
[
62.462,
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],
[
80.457,
82.361
],
[
99.799,
100.589
],
[
136.231,
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],
[
137.857,
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],
[
144.335,
145.009
],
[
145.961,
146.843
],
[
150.837,
152.137
],
[
157.315,
158.569
],
[
162.981,
165.187
],
[
169.482,
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],
[
175.984,
176.541
],
[
176.774,
178.004
],
[
178.399,
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]
]
},
{
"lane": "upper_mid",
"band_hz": [
710,
1400
],
"entry_s": 11.494,
"exit_s": 192.192,
"active_fraction": 0.4136,
"segments": [
[
11.494,
12.469
],
[
14.791,
15.743
],
[
17.972,
19.133
],
[
21.293,
22.454
],
[
24.497,
25.681
],
[
26.331,
32.183
],
[
32.856,
38.661
],
[
38.94,
40.821
],
[
41.308,
66.2
],
[
73.12,
73.747
],
[
77.903,
78.437
],
[
80.527,
82.988
],
[
90.906,
91.44
],
[
92.206,
92.903
],
[
99.776,
101.239
],
[
101.425,
102.377
],
[
102.679,
103.468
],
[
110.434,
110.991
],
[
137.044,
137.81
],
[
138.089,
138.6
],
[
142.71,
144.869
],
[
149.211,
153.043
],
[
155.713,
159.962
],
[
162.865,
166.325
],
[
169.343,
172.78
],
[
175.961,
179.537
],
[
182.532,
185.644
],
[
189.01,
192.192
]
]
},
{
"lane": "presence",
"band_hz": [
1400,
2800
],
"entry_s": 21.966,
"exit_s": 192.308,
"active_fraction": 0.3101,
"segments": [
[
21.966,
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],
[
26.308,
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],
[
33.228,
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],
[
36.502,
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],
[
38.94,
41.053
],
[
41.401,
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],
[
44.188,
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],
[
45.418,
47.601
],
[
47.856,
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],
[
52.709,
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],
[
54.335,
55.449
],
[
55.96,
57.284
],
[
57.585,
58.932
],
[
59.188,
62.09
],
[
62.438,
66.409
],
[
90.302,
91.324
],
[
150.047,
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],
[
156.317,
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],
[
162.865,
167.114
],
[
169.297,
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],
[
175.775,
180.117
],
[
182.393,
185.76
],
[
188.848,
192.308
]
]
},
{
"lane": "brilliance",
"band_hz": [
2800,
5600
],
"entry_s": 26.796,
"exit_s": 198.02,
"active_fraction": 0.2735,
"segments": [
[
26.796,
27.585
],
[
32.926,
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],
[
34.691,
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],
[
39.358,
40.031
],
[
43.421,
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],
[
44.327,
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],
[
45.418,
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],
[
47.88,
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],
[
49.83,
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],
[
54.335,
54.938
],
[
60.836,
61.44
],
[
62.462,
62.973
],
[
64.087,
66.223
],
[
149.908,
155.249
],
[
156.108,
161.936
],
[
162.656,
168.438
],
[
169.134,
174.962
],
[
175.682,
181.464
],
[
182.416,
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],
[
188.871,
193.004
],
[
195.744,
198.02
]
]
},
{
"lane": "air",
"band_hz": [
5600,
11200
],
"entry_s": 65.132,
"exit_s": 196.58,
"active_fraction": 0.1927,
"segments": [
[
65.132,
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],
[
150.024,
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],
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156.108,
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],
[
162.656,
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],
[
169.088,
174.475
],
[
175.589,
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],
[
181.998,
186.619
],
[
188.476,
193.12
],
[
195.767,
196.58
]
]
}
],
"interlap_matrix": {
"sub|low_bass": 0.3146,
"sub|bass": 0.2229,
"sub|low_mid": 0.0582,
"sub|mid": 0.059,
"sub|upper_mid": 0.138,
"sub|presence": 0.1606,
"sub|brilliance": 0.1665,
"sub|air": 0.1796,
"low_bass|bass": 0.3774,
"low_bass|low_mid": 0.1969,
"low_bass|mid": 0.194,
"low_bass|upper_mid": 0.324,
"low_bass|presence": 0.3818,
"low_bass|brilliance": 0.4634,
"low_bass|air": 0.4762,
"bass|low_mid": 0.2976,
"bass|mid": 0.3189,
"bass|upper_mid": 0.3568,
"bass|presence": 0.298,
"bass|brilliance": 0.2478,
"bass|air": 0.2268,
"low_mid|mid": 0.6186,
"low_mid|upper_mid": 0.5305,
"low_mid|presence": 0.5,
"low_mid|brilliance": 0.306,
"low_mid|air": 0.1794,
"mid|upper_mid": 0.6086,
"mid|presence": 0.5036,
"mid|brilliance": 0.2884,
"mid|air": 0.1418,
"upper_mid|presence": 0.6367,
"upper_mid|brilliance": 0.4124,
"upper_mid|air": 0.2656,
"presence|brilliance": 0.5655,
"presence|air": 0.3937,
"brilliance|air": 0.6296
},
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0.186,
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1.115,
1.3,
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186.5,
187.25,
187.99,
188.73,
189.47,
190.22,
190.96,
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193.93,
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203.59,
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205.08,
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206.56,
207.31,
208.05
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},
"register": {
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"melody_tessitura_midi": 52.0,
"bass_floor_band": {
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"low_bass": 0.02046,
"bass": 0.3288,
"low_mid": 0.52776,
"mid": 0.04268,
"upper_mid": 0.06609,
"presence": 0.01228,
"brilliance": 0.00189,
"air": 3e-05,
"ultra": 0.0
},
"octave_band_profile": {
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"bass": 0.3288,
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"air": 3e-05,
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}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 0.83607,
"interior_distance_median": 0.02223,
"seam_ratio": 37.615,
"seam_clean": false,
"tail_rms_over_mid": 0.0143,
"head_rms_over_mid": 0.9969,
"tail_rms_trend": -0.0058,
"head_rms_trend": -0.8643,
"baked_fade_out": false,
"baked_fade_in": false
},
"ending": "through_or_loop",
"cadence_census_note": "A cadence census needs harmonic transcription and is a rung-2 dimension; the seam measurement is what rung 1 can honestly report about how it ends."
},
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726.1,
724.5,
793.2,
429.5,
670.7,
727.3,
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428.9,
702.6,
628.0,
715.1,
701.4,
438.6,
616.3,
711.5,
706.3,
326.2,
518.6,
399.8,
575.4,
327.9,
403.3,
471.8,
518.0,
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374.9,
534.6,
514.8,
624.1,
370.8,
456.5,
397.0,
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392.0,
676.4,
1012.0,
870.9,
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634.6,
655.8,
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358.7,
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661.5,
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572.3,
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480.1,
553.1,
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903.9,
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698.8,
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884.1,
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732.0,
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568.8,
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817.5,
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1413.1,
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}
}
}